Bug
Geoprocessing tools using arcpy.nax.ClosestFacility take 10 times as long to run in ArcGIS Pro 3.5.
| Bug ID Number | BUG-000179683 |
|---|---|
| Submitted | September 23, 2025 |
| Last Modified | October 2, 2025 |
| Applies to | ArcGIS Pro |
| Version found | 3.5.2 |
| Operating System | Windows OS |
| Operating System Version | 11.0 64 bit |
| Version Fixed | 3.6 |
| Status | Fixed |
Additional Information
This issue is addressed in ArcGIS Pro 3.6.Workaround
The slowdown appears to be in generating the route geometries for the closest facility analysis. If route geometries are not needed (only the route costs or table of values), set closestFacility.routeShapeType = arcpy.nax.RouteShapeType.NoLine. With this option, the solve takes less than 30 seconds. Users can also consider using the origin destination (OD) cost matrix solver for better overall performance if route geometries are not required. The team is investigating why generating the route geometries takes so long and why performance slowed down between ArcGIS Pro 3.3 and 3.5 and is attempting to fix it.
Steps to Reproduce
Bug ID: BUG-000179683
Software:
- ArcGIS Pro
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